package com.jie.demo02;

import java.text.SimpleDateFormat;
import java.util.Date;

//模拟倒计时
public class TestSleep2 {
    public static void main(String[] args) {
        Date startTime= new Date(System.currentTimeMillis());
        while (true){
            try {
                Thread.sleep(1000);
                System.out.println(new SimpleDateFormat("HH,mm,ss").format(startTime));
                startTime= new Date(System.currentTimeMillis());
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }


    }


    //模拟延时
    public static void tendown() throws InterruptedException {
        int num=10;
        while (true){
            Thread.sleep(1000);
            System.out.println(num--);
            if (num<=0){
                break;
            }
        }
    }
}


